Pipe pulling device for T-shaped three-way pipe

Abstract

The utility model discloses a T-shaped three-way pipe pulling device which comprises a lower workbench, a first workbench arranged on the lower workbench, a first lower die fixed to the first workbench, a lower pulling air cylinder fixed to the lower workbench, a plurality of first supporting columns fixed to the first workbench and an upper workbench arranged on the first supporting columns. The first upper extrusion air cylinder is fixed to the upper workbench and penetrates through the upper workbench, the first upper die is arranged on the lower portion of the first upper extrusion air cylinder and is opposite to the first lower die, and the first inner die block penetrates through the first lower die and the first workbench from top to bottom and is connected with the lower pulling air cylinder. By means of the scheme, the device has the advantages of being simple in structure, easy, convenient and reliable to machine and the like, and has high practical value and popularization value in the technical field of pipeline machining.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, and in particular to a T-type tee pipe pulling device. Background Technology

[0002] This technology primarily utilizes metal pipes for gas transmission, which are equipped with tees or multi-way connectors at branch points. This technology mainly targets T-type tees, such as... Figure 1 As shown. Currently, traditional T-type tees use separate first straight pipe 10 and second straight pipe 20 for welding connection. Before welding, it is necessary to make a round hole in the first straight pipe 10 in the longitudinal direction and a round hole in the second straight pipe 20 in the horizontal direction, as shown. Figure 2 As shown. The existing processing method has the following problems: First, the processing efficiency of cutting holes in the first straight pipe 10 and the second straight pipe 20 is low and complex; second, when welding the first straight pipe 10 and the second straight pipe 20, welding can only be done on their outer edges, making internal welding difficult; third, when welding the first straight pipe 10 and the second straight pipe 20 together, a specialized positioning fixture is required to ensure that the longitudinal circular hole on the first straight pipe 10 coincides with the second straight pipe 20. Therefore, it is evident that the existing technology has low processing efficiency and poor processing quality.

[0003] Therefore, there is an urgent need to propose a T-type tee pipe pulling device that is simple in structure, easy to process, and reliable. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a T-type tee pipe pulling device. The technical solution adopted by this utility model is as follows:

[0005] A T-shaped tee pipe pulling device is disclosed, which processes a straight pipe section to obtain a T-shaped tee pipe containing branch pipe sections. Each straight pipe section has an elliptical hole. The elliptical hole is arranged along the axial direction of the straight pipe section, and the circumference of the elliptical hole is equal to the circumference of the branch pipe section. The T-shaped tee pipe pulling device includes: a lower worktable; a first worktable disposed on the lower worktable; a first lower mold fixed on the first worktable; a pull-down cylinder fixed on the lower worktable; several first support columns fixed on the first worktable; an upper worktable disposed on the first support columns; a first upper extrusion cylinder fixed on and penetrating the upper worktable; a first upper mold disposed below the first upper extrusion cylinder and opposite to the first lower mold; and a first inner module penetrating the first lower mold and the first worktable from top to bottom and connected to the pull-down cylinder. Both the first lower mold and the first upper mold have a first circular groove. The straight pipe section is placed within the first circular groove.

[0006] The first inner module includes a first hemisphere, a first elliptical cylinder disposed at the bottom of the first hemisphere and connected to an elliptical hole, a first screw rod that runs from bottom to top through the first hemisphere and the first elliptical cylinder and is threadedly connected to the first hemisphere and the first elliptical cylinder, and a first connecting rod disposed at the lower part of the first screw rod; the first connecting rod is connected to a pull-down cylinder; the diameter of the first hemisphere is equal to the inner diameter of the pipe section.

[0007] Furthermore, a first mold mounting plate is provided on the first workbench; the first lower mold is fixed on the first mold mounting plate; a first circular through hole is formed in the first lower mold, the first mold mounting plate and the first workbench; the first inner module is placed in the first circular through hole.

[0008] Furthermore, the diameter of the first circular through hole is equal to the outer diameter of the pipe section; the first elliptical cylinder has the same dimensions as the elliptical hole.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] (1) This utility model is formed by opening an elliptical hole on a straight pipe section, with the circumference of the elliptical hole being equal to the circumference of the branch pipe section. The part around the elliptical hole is squeezed and raised by pulling the mold to form a tubular branch pipe section, thereby forming a T-shaped tee pipe containing the branch pipe section. There is no weld between the branch pipe section and the straight pipe section. It is not formed by squeezing a part of the original straight pipe section, so its sealing performance is better and the processing efficiency is very high.

[0011] (2) Under the extrusion action of the first upper extrusion cylinder, the first lower mold and the first upper mold wrap around the straight pipe section, thereby achieving reliable fixed support for the straight pipe section, avoiding the deformation of the round pipe section during the pulling process, and ensuring that only the part forming the pipe section can be pulled and deformed. Its support is reliable and the processing is convenient.

[0012] (3) By setting a first hemisphere, a first elliptical cylinder, a first screw and a first connecting rod, the first elliptical cylinder is sleeved on the elliptical hole, which on the one hand realizes the position of the straight pipe section; on the other hand, it facilitates the extrusion and expansion deformation of the elliptical hole by the first hemisphere, ensuring the reliable formation of the pipe section.

[0013] In summary, this utility model has the advantages of simple structure and easy and reliable processing, and has high practical and promotional value in the field of pipeline processing technology. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a T-shaped tee pipe.

[0016] Figure 2 This is a schematic diagram of the welding connection of a T-shaped tee pipe in the prior art.

[0017] Figure 3 This is a schematic diagram of the straight pipe section of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the drawing die in this utility model.

[0019] Figure 5 This is a structural schematic diagram of the first mold mounting plate, the first lower mold, and the first inner module in this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the first inner module in this utility model.

[0021] In the above figures, the component names corresponding to the reference numerals are as follows:

[0022] 1. Straight pipe section; 2. Branch pipe section; 10. First straight pipe; 20. Second straight pipe; 11. Elliptical hole; 101. Lower worktable; 102. First worktable; 103. First support column; 104. Upper worktable; 105. First upper extrusion cylinder; 106. Pull-down cylinder; 107. First mold mounting plate; 108. First lower mold; 109. First upper mold; 110. First inner module; 111. First circular through hole; 1101. First hemisphere; 1102. First elliptical cylinder; 1103. First screw; 1104. First connecting rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0024] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0025] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0026] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0027] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0028] like Figure 1 , Figure 3 , Figures 4 to 6 As shown, this embodiment provides a T-shaped tee pipe pulling device to process a straight pipe section to obtain a T-shaped tee pipe containing branch pipe sections. The straight pipe section has an elliptical hole. The elliptical hole is arranged along the axial direction of the straight pipe section, and the circumference of the elliptical hole is equal to the circumference of the branch pipe section.

[0029] The T-shaped tee pipe pulling device includes: a lower worktable 101, a first worktable 102 set on the lower worktable 101, a first lower mold 108 fixed on the first worktable 102, a pull-down cylinder 106 fixed on the lower worktable 101, several first support columns 103 fixed on the first worktable 102, an upper worktable 104 set on the first support columns 103, a first upper extrusion cylinder 105 fixed on the upper worktable 104 and passing through the upper worktable 104, a first upper mold 109 set at the lower part of the first upper extrusion cylinder 105 and opposite to the first lower mold 108, and a first inner module 110 that passes through the first lower mold 108 and the first worktable 102 from top to bottom and is connected to the pull-down cylinder 106. The first inner module 110 includes a first hemisphere 1101, a first elliptical cylinder 1102 disposed at the bottom of the first hemisphere 1101 and sleeved and connected to the elliptical hole 11, a first screw 1103 disposed from bottom to top through the first hemisphere 1101 and the first elliptical cylinder 1102 and threadedly connected to the first hemisphere 1101 and the first elliptical cylinder 1102, and a first connecting rod 1104 disposed at the lower part of the first screw 1103.

[0030] In this embodiment, a first circular groove is provided in both the first lower mold 108 and the first upper mold 109, and the straight pipe section 1 is clamped in the first circular grooves of the first lower mold 108 and the first upper mold 109. A first mold mounting plate 107 is provided on the first worktable 102, and the first lower mold is fixed on the first mold mounting plate 107. In addition, a first circular through hole 111 is formed in the first lower mold 108, the first mold mounting plate 107, and the first worktable 102. The first inner module 110 is placed in the first circular through hole 111. In this embodiment, the first connecting rod 1104 is connected to the pull-down cylinder 106.

[0031] In this embodiment, the diameter of the first hemisphere 1101 is equal to the inner diameter of the pipe section 2, the diameter of the first circular through hole 111 is equal to the outer diameter of the pipe section 2, and the first elliptical cylinder 1102 has the same size as the elliptical hole 11.

[0032] In use, the elliptical hole 11 is oriented downwards and fitted onto the first screw 1103. The first hemisphere 1101 and the first elliptical cylinder 1102 are inserted into the straight pipe section 1 and threadedly connected to the first screw 1103. After connection, the first upper extrusion cylinder 105 drives the first upper mold 109 to approach the first lower mold 108 and extrudes and supports the outer edge of the straight pipe section 1. Then, the pull-down cylinder 106 pulls the first hemisphere 1101 and the first elliptical cylinder 1102 downwards, with the first elliptical cylinder 1102 fitted into the elliptical hole 11. Continuing to pull the first hemisphere 1101 and the first elliptical cylinder 1102 downwards causes the first hemisphere 1101 to compress the inner wall around the elliptical hole 11 and deform it into the pipe section 2, thus completing the one-time forming of the T-shaped tee pipe. It should be noted that this processing equipment is suitable for straight pipe section 1 with a large diameter and can accommodate the installation of the first hemisphere 1101 and the first elliptical cylinder 1102.

[0033] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.

Claims

1. A T-shaped tee pipe pulling device, which processes a straight pipe section (1) to obtain a T-shaped tee pipe containing branch pipe sections (2), characterized in that, The straight pipe section (1) has an elliptical hole (11); the elliptical hole (11) is arranged along the axial direction of the straight pipe section (1), and the circumference of the elliptical hole (11) is equal to the circumference of the branch pipe section (2); the T-shaped tee pipe pulling device includes a lower worktable (101), a first worktable (102) set on the lower worktable (101), a first lower mold (108) fixed on the first worktable (102), a pull-down cylinder (106) fixed on the lower worktable (101), and several first support columns (103) fixed on the first worktable (102), and is set on the first support columns (103). The upper worktable (104), a first upper extrusion cylinder (105) fixed on the upper worktable (104) and passing through the upper worktable (104), a first upper mold (109) disposed at the lower part of the first upper extrusion cylinder (105) and opposite to the first lower mold (108), and a first inner module (110) passing through the first lower mold (108) and the first worktable (102) from top to bottom and connected to the pull-down cylinder (106); a first circular groove is provided in both the first lower mold (108) and the first upper mold (109); the straight pipe section (1) is placed in the first circular groove; The first inner module (110) includes a first hemisphere (1101), a first elliptical cylinder (1102) disposed at the bottom of the first hemisphere (1101) and sleeved and connected to the elliptical hole (11), a first screw (1103) disposed from bottom to top through the first hemisphere (1101) and the first elliptical cylinder (1102) and threadedly connected to the first hemisphere (1101) and the first elliptical cylinder (1102), and a first connecting rod (1104) disposed at the lower part of the first screw (1103); the first connecting rod (1104) is connected to the pull-down cylinder (106); the diameter of the first hemisphere (1101) is equal to the inner diameter of the branch pipe section (2).

2. The T-shaped tee pipe pulling device according to claim 1, characterized in that, A first mold mounting plate (107) is provided on the first workbench (102); the first lower mold is fixed on the first mold mounting plate (107); a first circular through hole (111) is opened in the first lower mold (108), the first mold mounting plate (107) and the first workbench (102); the first inner module (110) is placed in the first circular through hole (111).

3. The T-shaped tee pipe pulling device according to claim 2, characterized in that, The diameter of the first circular through hole (111) is equal to the outer diameter of the pipe section (2); the first elliptical cylinder (1102) has the same size as the elliptical hole (11).

Images